20921875 (number)

20921875 is an odd 8-digits composite number following 20921874 and preceding 20921876. In scientific notation, it is written as 2.0921875 × 10^7. The sum of its digits is 34. It has a total of 5 prime factors and 28 positive divisors. There are 15300000 positive integers (up to 20921875) that are relatively prime to 20921875.

Interesting facts

Basic properties

Name

Name twenty million nine hundred twenty-one thousand eight hundred seventy-five

Notation

Scientific notation 2.0921875 × 10^7
Engineering notation 2.0921875 × 10^6

Prime Factorization of 20921875

Prime Factorization 13 × 125 × 25 × 5 × 103

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 20921875
Product of the distinct prime numbers

The prime factorization of 20921875 is 13 × 125 × 25 × 5 × 103. Since it has a total of 5 prime factors.

Most popular turbo-numbers

1, 3, 19, 28, 302, 752, 9719, 5861, 69910, 78968, 219211, 238073, 2762006, 8210127, 99224157, 22949602, 688550216, 129173725, 1075080503, 8747678744

Basic calculations (n = 20921875)

Multiplication

n×y
n×2 41843750
n×3 62765625
n×4 83687500
n×5 104609375

Division

n÷y
n÷2 10460937.5
n÷3 6973958.3333333
n÷3 5230468.75
n÷5 4184375

Exponentiation

ny
n2 437724853515625
n3 9.1580246696472E+21
n4 1.9160304738528E+29
n5 4.0086950070138E+36

Nth Root

y√n
2√n 4574.043615883
3√n 275.54986399848
4√n 67.631676128002
5√n 29.115222985945

Divisors of 20921875

1, 5, 13, 25, 65, 103, 125, 325, 515, 625, 1339, 1625, 2575, 3125, 6695, 8125, 12875, 15625, 33475, 40625, 64375, 167375, 203125, 321875, 836875, 1609375, 4184375, 20921875

28 divisors

τ Total Divisors 28
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20921874
Sum of the proper positive divisors of n
A Arithmetic Mean 0.035714285714286
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 1
Returns the nth root of the product of n divisors
H Harmonic Mean 28
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20921875 can be divided by 28 positive divisors. The sum of these divisors (counting 20921875) is 1, the average is 0.035714285714286.

Base conversion 20921875

Base System Value
2 Binary 1001111110011111000010011
3 Ternary 1110100221102021
4 Quaternary 1033303320103
5 Quinary 20324000000
6 Senary 2024232311
8 Octal 117637023
10 Decimal 20921875
12 Duodecimal 700b697
16 Hexadecimal 13f3e13
20 Vigesimal 6af4df
36 Base36 cgff7

Cryptographic Hash Functions

md5 c0bf97232de0062652545d36d18df8fa
sha1 1f7b3f6ca3d3b78462687a18d8f29ba43b87621a
sha256 e0dff8ea57f4d55f5110921b6764ef6704e944a13832a6f055536a84961c1cc2
sha512 db1c7cd21fc098f869d598a7cdf4f45265e125c80fe13444651c98b6f060c4cc4c365fa1f5befe1b6c942d3bd4e93c52db32af2711fa43f28f9b7fe4a0dc4741
ripemd-160 e07584b63ac785691fc325ded13f98925a93f95d

20921875 as geometric shapes

Circle

Radius = n
Diameter 41843750
Circumference 131456017.59865
Area 1.3751531840984E+15

Sphere

Radius = n
Volume 3.836104403141E+22
Surface area 5.5006127363934E+15
Circumference 131456017.59865

Square

Length = n
Perimeter 83687500
Area 437724853515625
Diagonal 29587999.375275

Cube

Length = n
Surface area 2626349121093750
Volume 9.1580246696472E+21
Space diagonal 36237750.489605

Equilateral Triangle

Length = n
Perimeter 62765625
Area 1.8954042150618E+14
Altitude 18118875.244803

Triangular Pyramid

Length = n
Surface area 1.8954042150618E+14
Volume 1.0792835576969E+21
Height 9862666.4584249